* {
    margin: 0;
    padding: 0;
    font-size: 20px;
}
  
ul, ol, li {
    list-style: none;
}
  
input, button, textarea, select {
    outline: none;
}
  
button {
    cursor: pointer;
}
  
a, img {
    width: 100%;
    height: 100%;
    display: block;
}
  
a, a:hover, a:link, a:active {
    text-decoration: none;
    color: #333;
}
  
.container {
    width: 1200px;
    margin: 0 auto;
}
  
.header {
    height: 60px;
    font-size: 40px;
    font-weight: 700;
    color: #fff;
    background-color: skyblue;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}
  
.header > p > a,
.header > p {
    font-weight: 400;
}
  
.header > p {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 10px;
    display: none;
}
  
.header > p > a {
    display: inline;
}
  
.header > p.active {
    display: block;
}
  